干旱区生态环境知识资源中心(Arid): Change in soil water deficit and soil organic matter consumption over time in rain-fed apricot orchards on the semi-arid Loess Plateau, China

Arid

DOI	10.1016/j.agee.2021.107381
	Change in soil water deficit and soil organic matter consumption over time in rain-fed apricot orchards on the semi-arid Loess Plateau, China
	Yang, Kaiqi; Wang, Ke; Zhang, Xiaoyuan; Chang, Xiaofeng; Bai, Gangshuan; Zheng, Jiyong; Wu, Gao-Lin
通讯作者	Zheng, JY ; Wu, GL (corresponding author), Northwest A&F Univ, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China.
来源期刊	AGRICULTURE ECOSYSTEMS & ENVIRONMENT
ISSN	0167-8809
EISSN	1873-2305
出版年	2021
卷号	314
英文摘要	The impacts of massive reforestation on soil water and soil organic matter (SOM) in the ecosystem are attracting increasing attention worldwide. However, the response of the soil water content (SWC) and SOM after the conversion of agricultural land to economic forestland have not been sufficiently clarified in semi-arid areas. To investigate the influence of land-use change on the SWC and SOM dynamics, we examined the SWC (0?400 cm depth) and SOM (0?60 cm depth) and growth status of fruit trees in three apricot (Armeniaca vulgaris Lam.) orchards of different ages (7, 12, and 22 years) under extensive management, together with those of adjacent cropland (control) on the Loess Plateau, China. The results showed that SWC significantly decreased with increasing stand age, and strong soil desiccation occurred in the 12-year-old apricot orchard after conversion from cropland. The annual growth rate of the dried soil layer between the 12th and 22nd years (12.00 cm y-1) was higher than that between the 1st and 12th years (6.67 cm y-1). The soil water deficit was 498.81 mm over 22 years in the 0?400 cm soil profiles. SOM stock was improved in the short term (7 y) compared with the cropland, and was consumed thereafter. Only the topsoil (0?20 cm soil profiles) experienced SOM consumption in the 12year-old orchard, but the SOM of all soil layers was consumed in the 22-year-old orchard. In the 0?60 cm soil profiles over 22 years, the SOM consumption was 26.53 Mg ha- 1. The length and diameter of peripheral branches generally decreased with increasing stand age; where those of the 22-year-old orchard were 83.87 % and 39.13 % lower than those of the 7-year-old orchard (P < 0.05). These results indicate that long-term planting of apricot trees under extensive management could aggravate soil water deficit and SOM consumption, and further limit apricot growth. Therefore, appropriate management measures should be implemented to maintain and improve the SWC and SOM conditions and enhance the productivity and vigour of the orchard over ten years of cultivation.
英文关键词	Economic forestland Stand age Soil water deficit Soil organic matter Semi-arid area
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000644434200001
WOS关键词	LAND-USE CHANGE ; CARBON STOCKS ; VEGETATION RESTORATION ; SPATIAL VARIABILITY ; DIFFERENT AGES ; MOISTURE ; FOREST ; REVEGETATION ; CONVERSION ; IMPACTS
WOS类目	Agriculture, Multidisciplinary ; Ecology ; Environmental Sciences
WOS研究方向	Agriculture ; Environmental Sciences & Ecology
来源机构	西北农林科技大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/349362
作者单位	[Yang, Kaiqi; Wang, Ke; Zhang, Xiaoyuan; Chang, Xiaofeng; Bai, Gangshuan; Zheng, Jiyong; Wu, Gao-Lin] Northwest A&F Univ, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China; [Yang, Kaiqi; Wang, Ke; Zhang, Xiaoyuan] Northwest A&F Univ, Coll Nat Resources & Environm, Yangling 712100, Shaanxi, Peoples R China; [Chang, Xiaofeng; Bai, Gangshuan; Zheng, Jiyong; Wu, Gao-Lin] Chinese Acad Sci & Minist Water Resource, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China; [Wu, Gao-Lin] CAS Ctr Excellence Quaternary Sci & Global Change, Xian 712100, Shaanxi, Peoples R China
推荐引用方式 GB/T 7714	Yang, Kaiqi,Wang, Ke,Zhang, Xiaoyuan,et al. Change in soil water deficit and soil organic matter consumption over time in rain-fed apricot orchards on the semi-arid Loess Plateau, China[J]. 西北农林科技大学,2021,314.
APA	Yang, Kaiqi.,Wang, Ke.,Zhang, Xiaoyuan.,Chang, Xiaofeng.,Bai, Gangshuan.,...&Wu, Gao-Lin.(2021).Change in soil water deficit and soil organic matter consumption over time in rain-fed apricot orchards on the semi-arid Loess Plateau, China.AGRICULTURE ECOSYSTEMS & ENVIRONMENT,314.
MLA	Yang, Kaiqi,et al."Change in soil water deficit and soil organic matter consumption over time in rain-fed apricot orchards on the semi-arid Loess Plateau, China".AGRICULTURE ECOSYSTEMS & ENVIRONMENT 314(2021).